<div class="callout">
    <?php 
        $escaper = new Zend\Escaper\Escaper('utf-8');

        echo sprintf('<div class="title">%s</div>', $escaper->escapeHtml($this->title));
        echo '<hr>';
        echo sprintf('<img class="icon" src="%s" />', $escaper->escapeHtmlAttr($this->imageUrl));
        echo sprintf('<div class="content">%s</div>', $escaper->escapeHtml($this->content));
    ?>
</div>
